Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

34 files changed, 493 insertions, 235 deletions

diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index b627f8dbcaa..d41f66ac7ff 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -26,6 +26,14 @@ config MMU
 	bool
 	default y
 
+config STACKTRACE_SUPPORT
+	bool
+	default y
+
+config LOCKDEP_SUPPORT
+	bool
+	default y
+
 config TIME_INTERPOLATION
 	bool
 	default y
@@ -34,6 +42,14 @@ config ARCH_MAY_HAVE_PC_FDC
 	bool
 	default y
 
+config ARCH_HAS_ILOG2_U32
+	bool
+	default n
+
+config ARCH_HAS_ILOG2_U64
+	bool
+	default n
+
 config AUDIT_ARCH
 	bool
 	default y
diff --git a/arch/sparc64/Kconfig.debug b/arch/sparc64/Kconfig.debug
index afe0a7720a2..1f130f3b6c2 100644
--- a/arch/sparc64/Kconfig.debug
+++ b/arch/sparc64/Kconfig.debug
@@ -1,5 +1,9 @@
 menu "Kernel hacking"
 
+config TRACE_IRQFLAGS_SUPPORT
+	bool
+	default y
+
 source "lib/Kconfig.debug"
 
 config DEBUG_STACK_USAGE
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig
index 2f4612fa81f..5a9e68b13e6 100644
--- a/arch/sparc64/defconfig
+++ b/arch/sparc64/defconfig
@@ -1,24 +1,29 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.19-rc2
-# Tue Oct 17 19:29:20 2006
+# Linux kernel version: 2.6.20-rc2
+# Thu Dec 28 15:09:49 2006
 #
 CONFIG_SPARC=y
 CONFIG_SPARC64=y
 CONFIG_64BIT=y
 CONFIG_MMU=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_TIME_INTERPOLATION=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_AUDIT_ARCH=y
 CONFIG_SPARC64_PAGE_SIZE_8KB=y
 # CONFIG_SPARC64_PAGE_SIZE_64KB is not set
 # CONFIG_SPARC64_PAGE_SIZE_512KB is not set
 # CONFIG_SPARC64_PAGE_SIZE_4MB is not set
 CONFIG_SECCOMP=y
-# CONFIG_HZ_100 is not set
-CONFIG_HZ_250=y
+CONFIG_HZ_100=y
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_300 is not set
 # CONFIG_HZ_1000 is not set
-CONFIG_HZ=250
+CONFIG_HZ=100
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
@@ -42,13 +47,14 @@ CONFIG_POSIX_MQUEUE=y
 # CONFIG_UTS_NS is not set
 # CONFIG_AUDIT is not set
 # CONFIG_IKCONFIG is not set
+CONFIG_SYSFS_DEPRECATED=y
 CONFIG_RELAY=y
 CONFIG_INITRAMFS_SOURCE=""
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_SYSCTL=y
 # CONFIG_EMBEDDED is not set
 CONFIG_UID16=y
-# CONFIG_SYSCTL_SYSCALL is not set
+CONFIG_SYSCTL_SYSCALL=y
 CONFIG_KALLSYMS=y
 # CONFIG_KALLSYMS_ALL is not set
 # CONFIG_KALLSYMS_EXTRA_PASS is not set
@@ -203,6 +209,7 @@ CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
 CONFIG_TCP_CONG_CUBIC=y
 CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
 CONFIG_IPV6=m
 CONFIG_IPV6_PRIVACY=y
 CONFIG_IPV6_ROUTER_PREF=y
@@ -219,7 +226,6 @@ CONFIG_INET6_XFRM_MODE_BEET=m
 # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
 CONFIG_IPV6_SIT=m
 CONFIG_IPV6_TUNNEL=m
-# CONFIG_IPV6_SUBTREES is not set
 # CONFIG_IPV6_MULTIPLE_TABLES is not set
 # CONFIG_NETWORK_SECMARK is not set
 # CONFIG_NETFILTER is not set
@@ -238,6 +244,8 @@ CONFIG_IP_DCCP_CCID2=m
 # CONFIG_IP_DCCP_CCID2_DEBUG is not set
 CONFIG_IP_DCCP_CCID3=m
 CONFIG_IP_DCCP_TFRC_LIB=m
+# CONFIG_IP_DCCP_CCID3_DEBUG is not set
+CONFIG_IP_DCCP_CCID3_RTO=100
 
 #
 # DCCP Kernel Hacking
@@ -326,7 +334,7 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 # CONFIG_BLK_DEV_SX8 is not set
-CONFIG_BLK_DEV_UB=m
+# CONFIG_BLK_DEV_UB is not set
 # CONFIG_BLK_DEV_RAM is not set
 # CONFIG_BLK_DEV_INITRD is not set
 CONFIG_CDROM_PKTCDVD=m
@@ -405,6 +413,7 @@ CONFIG_IDEDMA_AUTO=y
 #
 CONFIG_RAID_ATTRS=m
 CONFIG_SCSI=y
+# CONFIG_SCSI_TGT is not set
 CONFIG_SCSI_NETLINK=y
 CONFIG_SCSI_PROC_FS=y
 
@@ -425,6 +434,7 @@ CONFIG_CHR_DEV_SG=m
 CONFIG_SCSI_MULTI_LUN=y
 CONFIG_SCSI_CONSTANTS=y
 # CONFIG_SCSI_LOGGING is not set
+# CONFIG_SCSI_SCAN_ASYNC is not set
 
 #
 # SCSI Transports
@@ -468,6 +478,7 @@ CONFIG_ISCSI_TCP=m
 # CONFIG_SCSI_DC390T is not set
 # CONFIG_SCSI_DEBUG is not set
 # CONFIG_SCSI_SUNESP is not set
+# CONFIG_SCSI_SRP is not set
 
 #
 # Serial ATA (prod) and Parallel ATA (experimental) drivers
@@ -598,6 +609,7 @@ CONFIG_BNX2=m
 # CONFIG_IXGB is not set
 # CONFIG_S2IO is not set
 # CONFIG_MYRI10GE is not set
+# CONFIG_NETXEN_NIC is not set
 
 #
 # Token Ring devices
@@ -724,10 +736,6 @@ CONFIG_RTC=y
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set
-
-#
-# Ftape, the floppy tape device driver
-#
 # CONFIG_DRM is not set
 # CONFIG_RAW_DRIVER is not set
 
@@ -832,6 +840,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_LM92 is not set
 # CONFIG_SENSORS_MAX1619 is not set
 # CONFIG_SENSORS_PC87360 is not set
+# CONFIG_SENSORS_PC87427 is not set
 # CONFIG_SENSORS_SIS5595 is not set
 # CONFIG_SENSORS_SMSC47M1 is not set
 # CONFIG_SENSORS_SMSC47M192 is not set
@@ -842,6 +851,7 @@ CONFIG_HWMON=y
 # CONFIG_SENSORS_W83781D is not set
 # CONFIG_SENSORS_W83791D is not set
 # CONFIG_SENSORS_W83792D is not set
+# CONFIG_SENSORS_W83793 is not set
 # CONFIG_SENSORS_W83L785TS is not set
 # CONFIG_SENSORS_W83627HF is not set
 # CONFIG_SENSORS_W83627EHF is not set
@@ -954,7 +964,6 @@ CONFIG_SND_VERBOSE_PROCFS=y
 #
 CONFIG_SND_MPU401_UART=m
 CONFIG_SND_AC97_CODEC=m
-CONFIG_SND_AC97_BUS=m
 CONFIG_SND_DUMMY=m
 CONFIG_SND_VIRMIDI=m
 CONFIG_SND_MTPAV=m
@@ -1037,6 +1046,12 @@ CONFIG_SND_SUN_CS4231=m
 # Open Sound System
 #
 # CONFIG_SOUND_PRIME is not set
+CONFIG_AC97_BUS=m
+
+#
+# HID Devices
+#
+CONFIG_HID=y
 
 #
 # USB support
@@ -1053,6 +1068,7 @@ CONFIG_USB=y
 CONFIG_USB_DEVICEFS=y
 # CONFIG_USB_BANDWIDTH is not set
 # CONFIG_USB_DYNAMIC_MINORS is not set
+# CONFIG_USB_MULTITHREAD_PROBE is not set
 # CONFIG_USB_OTG is not set
 
 #
@@ -1082,14 +1098,25 @@ CONFIG_USB_UHCI_HCD=m
 #
 # may also be needed; see USB_STORAGE Help for more information
 #
-# CONFIG_USB_STORAGE is not set
+CONFIG_USB_STORAGE=m
+# CONFIG_USB_STORAGE_DEBUG is not set
+# CONFIG_USB_STORAGE_DATAFAB is not set
+# CONFIG_USB_STORAGE_FREECOM is not set
+# CONFIG_USB_STORAGE_ISD200 is not set
+# CONFIG_USB_STORAGE_DPCM is not set
+# CONFIG_USB_STORAGE_USBAT is not set
+# CONFIG_USB_STORAGE_SDDR09 is not set
+# CONFIG_USB_STORAGE_SDDR55 is not set
+# CONFIG_USB_STORAGE_JUMPSHOT is not set
+# CONFIG_USB_STORAGE_ALAUDA is not set
+# CONFIG_USB_STORAGE_ONETOUCH is not set
+# CONFIG_USB_STORAGE_KARMA is not set
 # CONFIG_USB_LIBUSUAL is not set
 
 #
 # USB Input Devices
 #
 CONFIG_USB_HID=y
-CONFIG_USB_HIDINPUT=y
 # CONFIG_USB_HIDINPUT_POWERBOOK is not set
 # CONFIG_HID_FF is not set
 CONFIG_USB_HIDDEV=y
@@ -1119,6 +1146,7 @@ CONFIG_USB_HIDDEV=y
 # CONFIG_USB_KAWETH is not set
 # CONFIG_USB_PEGASUS is not set
 # CONFIG_USB_RTL8150 is not set
+# CONFIG_USB_USBNET_MII is not set
 # CONFIG_USB_USBNET is not set
 # CONFIG_USB_MON is not set
 
@@ -1208,6 +1236,10 @@ CONFIG_USB_HIDDEV=y
 #
 
 #
+# Virtualization
+#
+
+#
 # Misc Linux/SPARC drivers
 #
 CONFIG_SUN_OPENPROMIO=m
@@ -1364,6 +1396,11 @@ CONFIG_NLS_DEFAULT="iso8859-1"
 # CONFIG_NLS_UTF8 is not set
 
 #
+# Distributed Lock Manager
+#
+# CONFIG_DLM is not set
+
+#
 # Instrumentation Support
 #
 CONFIG_PROFILING=y
@@ -1373,10 +1410,13 @@ CONFIG_KPROBES=y
 #
 # Kernel hacking
 #
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
 CONFIG_PRINTK_TIME=y
 CONFIG_ENABLE_MUST_CHECK=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
 CONFIG_DEBUG_KERNEL=y
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_DETECT_SOFTLOCKUP=y
@@ -1387,17 +1427,16 @@ CONFIG_SCHEDSTATS=y
 # CONFIG_DEBUG_SPINLOCK is not set
 # CONFIG_DEBUG_MUTEXES is not set
 # CONFIG_DEBUG_RWSEMS is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_PROVE_LOCKING is not set
 # CONFIG_DEBUG_SPINLOCK_SLEEP is not set
 # CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
 # CONFIG_DEBUG_KOBJECT is not set
 CONFIG_DEBUG_BUGVERBOSE=y
 # CONFIG_DEBUG_INFO is not set
-CONFIG_DEBUG_FS=y
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
-# CONFIG_UNWIND_INFO is not set
 CONFIG_FORCED_INLINING=y
-# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_LKDTM is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
@@ -1420,8 +1459,9 @@ CONFIG_CRYPTO=y
 CONFIG_CRYPTO_ALGAPI=y
 CONFIG_CRYPTO_BLKCIPHER=y
 CONFIG_CRYPTO_HASH=y
-CONFIG_CRYPTO_MANAGER=m
+CONFIG_CRYPTO_MANAGER=y
 CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_XCBC=y
 CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_MD4=y
 CONFIG_CRYPTO_MD5=y
@@ -1430,8 +1470,10 @@ CONFIG_CRYPTO_SHA256=m
 CONFIG_CRYPTO_SHA512=m
 CONFIG_CRYPTO_WP512=m
 CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_GF128MUL=m
 CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_CBC=y
+CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_DES=y
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_TWOFISH=m
@@ -1456,6 +1498,7 @@ CONFIG_CRYPTO_TEST=m
 #
 # Library routines
 #
+CONFIG_BITREVERSE=y
 CONFIG_CRC_CCITT=m
 CONFIG_CRC16=m
 CONFIG_CRC32=y
@@ -1463,3 +1506,4 @@ CONFIG_LIBCRC32C=m
 CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_PLIST=y
+CONFIG_IOMAP_COPY=y
diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile
index e1eabebaed3..eff0c01d357 100644
--- a/arch/sparc64/kernel/Makefile
+++ b/arch/sparc64/kernel/Makefile
@@ -14,6 +14,7 @@ obj-y		:= process.o setup.o cpu.o idprom.o \
 		   power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o \
 		   visemul.o prom.o of_device.o
 
+obj-$(CONFIG_STACKTRACE) += stacktrace.o
 obj-$(CONFIG_PCI)	 += ebus.o isa.o pci_common.o pci_iommu.o \
 			    pci_psycho.o pci_sabre.o pci_schizo.o \
 			    pci_sun4v.o pci_sun4v_asm.o
diff --git a/arch/sparc64/kernel/binfmt_aout32.c b/arch/sparc64/kernel/binfmt_aout32.c
index d7caa60a007..f205fc7cbcd 100644
--- a/arch/sparc64/kernel/binfmt_aout32.c
+++ b/arch/sparc64/kernel/binfmt_aout32.c
@@ -209,7 +209,7 @@ static int load_aout32_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC &&
 	     N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) ||
 	    N_TRSIZE(ex) || N_DRSIZE(ex) ||
-	    bprm->file->f_dentry->d_inode->i_size < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
+	    bprm->file->f_path.dentry->d_inode->i_size < ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
 		return -ENOEXEC;
 	}
 
@@ -349,7 +349,7 @@ static int load_aout32_library(struct file *file)
 	int retval;
 	struct exec ex;
 
-	inode = file->f_dentry->d_inode;
+	inode = file->f_path.dentry->d_inode;
 
 	retval = -ENOEXEC;
 	error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
diff --git a/arch/sparc64/kernel/binfmt_elf32.c b/arch/sparc64/kernel/binfmt_elf32.c
index a98f3ae175a..9ad84ff10a1 100644
--- a/arch/sparc64/kernel/binfmt_elf32.c
+++ b/arch/sparc64/kernel/binfmt_elf32.c
@@ -141,7 +141,6 @@ cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
 	value->tv_sec = jiffies / HZ;
 }
 
-#define elf_addr_t	u32
 #undef start_thread
 #define start_thread start_thread32
 #define init_elf_binfmt init_elf32_binfmt
diff --git a/arch/sparc64/kernel/chmc.c b/arch/sparc64/kernel/chmc.c
index 259f37e516f..9699abeb990 100644
--- a/arch/sparc64/kernel/chmc.c
+++ b/arch/sparc64/kernel/chmc.c
@@ -341,7 +341,7 @@ static void fetch_decode_regs(struct mctrl_info *mp)
 
 static int init_one_mctrl(struct device_node *dp)
 {
-	struct mctrl_info *mp = kmalloc(sizeof(*mp), GFP_KERNEL);
+	struct mctrl_info *mp = kzalloc(sizeof(*mp), GFP_KERNEL);
 	int portid = of_getintprop_default(dp, "portid", -1);
 	struct linux_prom64_registers *regs;
 	void *pval;
@@ -349,7 +349,6 @@ static int init_one_mctrl(struct device_node *dp)
 
 	if (!mp)
 		return -1;
-	memset(mp, 0, sizeof(*mp));
 	if (portid == -1)
 		goto fail;
 
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 6f28bec0a9b..c15a3edcb82 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -597,7 +597,12 @@ __spitfire_cee_trap_continue:
 1:	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
 
-2:	mov		%l4, %o1
+2:
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call	trace_hardirqs_off
+	 nop
+#endif
+	mov		%l4, %o1
 	mov		%l5, %o2
 	call		spitfire_access_error
 	 add		%sp, PTREGS_OFF, %o0
@@ -824,6 +829,10 @@ do_cheetah_plus_data_parity:
 	wrpr		%g0, 15, %pil
 	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	mov		0x0, %o0
 	call		cheetah_plus_parity_error
 	 add		%sp, PTREGS_OFF, %o1
@@ -855,6 +864,10 @@ do_cheetah_plus_insn_parity:
 	wrpr		%g0, 15, %pil
 	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	mov		0x1, %o0
 	call		cheetah_plus_parity_error
 	 add		%sp, PTREGS_OFF, %o1
@@ -1183,6 +1196,10 @@ c_fast_ecc:
 	wrpr		%g0, 15, %pil
 	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	mov		%l4, %o1
 	mov		%l5, %o2
 	call		cheetah_fecc_handler
@@ -1211,6 +1228,10 @@ c_cee:
 	wrpr		%g0, 15, %pil
 	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	mov		%l4, %o1
 	mov		%l5, %o2
 	call		cheetah_cee_handler
@@ -1239,6 +1260,10 @@ c_deferred:
 	wrpr		%g0, 15, %pil
 	ba,pt		%xcc, etrap_irq
 	 rd		%pc, %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	mov		%l4, %o1
 	mov		%l5, %o2
 	call		cheetah_deferred_handler
diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index c8e9dc9d68a..baea10a9819 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -78,11 +78,7 @@ sparc_ramdisk_image64:
 
 	/* PROM cif handler code address is in %o4.  */
 sparc64_boot:
-1:	rd	%pc, %g7
-	set	1b, %g1
-	cmp	%g1, %g7
-	be,pn	%xcc, sparc64_boot_after_remap
-	 mov	%o4, %l7
+	mov	%o4, %l7
 
 	/* We need to remap the kernel.  Use position independant
 	 * code to remap us to KERNBASE.
@@ -295,7 +291,6 @@ is_sun4v:
 
 	add	%sp, (192 + 128), %sp
 
-sparc64_boot_after_remap:
 	sethi	%hi(prom_root_compatible), %g1
 	or	%g1, %lo(prom_root_compatible), %g1
 	sethi	%hi(prom_sun4v_name), %g7
@@ -489,6 +484,14 @@ tlb_fixup_done:
 	call	__bzero
 	 sub	%o1, %o0, %o1
 
+#ifdef CONFIG_LOCKDEP
+	/* We have this call this super early, as even prom_init can grab
+	 * spinlocks and thus call into the lockdep code.
+	 */
+	call	lockdep_init
+	 nop
+#endif
+
 	mov	%l6, %o1			! OpenPROM stack
 	call	prom_init
 	 mov	%l7, %o0			! OpenPROM cif handler
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index d64b1ea848d..c3d068c7a41 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -372,14 +372,14 @@ static void run_pre_handler(unsigned int virt_irq)
 	}
 }
 
-static struct hw_interrupt_type sun4u_irq = {
+static struct irq_chip sun4u_irq = {
 	.typename	= "sun4u",
 	.enable		= sun4u_irq_enable,
 	.disable	= sun4u_irq_disable,
 	.end		= sun4u_irq_end,
 };
 
-static struct hw_interrupt_type sun4u_irq_ack = {
+static struct irq_chip sun4u_irq_ack = {
 	.typename	= "sun4u+ack",
 	.enable		= sun4u_irq_enable,
 	.disable	= sun4u_irq_disable,
@@ -387,14 +387,14 @@ static struct hw_interrupt_type sun4u_irq_ack = {
 	.end		= sun4u_irq_end,
 };
 
-static struct hw_interrupt_type sun4v_irq = {
+static struct irq_chip sun4v_irq = {
 	.typename	= "sun4v",
 	.enable		= sun4v_irq_enable,
 	.disable	= sun4v_irq_disable,
 	.end		= sun4v_irq_end,
 };
 
-static struct hw_interrupt_type sun4v_irq_ack = {
+static struct irq_chip sun4v_irq_ack = {
 	.typename	= "sun4v+ack",
 	.enable		= sun4v_irq_enable,
 	.disable	= sun4v_irq_disable,
@@ -493,22 +493,6 @@ out:
 	return bucket->virt_irq;
 }
 
-void hw_resend_irq(struct hw_interrupt_type *handler, unsigned int virt_irq)
-{
-	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
-	unsigned long pstate;
-	unsigned int *ent;
-
-	__asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
-	__asm__ __volatile__("wrpr %0, %1, %%pstate"
-			     : : "r" (pstate), "i" (PSTATE_IE));
-	ent = irq_work(smp_processor_id());
-	bucket->irq_chain = *ent;
-	*ent = __irq(bucket);
-	set_softint(1 << PIL_DEVICE_IRQ);
-	__asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
-}
-
 void ack_bad_irq(unsigned int virt_irq)
 {
 	struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq);
diff --git a/arch/sparc64/kernel/isa.c b/arch/sparc64/kernel/isa.c
index f028e68b23f..98721a8f861 100644
--- a/arch/sparc64/kernel/isa.c
+++ b/arch/sparc64/kernel/isa.c
@@ -22,14 +22,15 @@ static void __init report_dev(struct sparc_isa_device *isa_dev, int child)
 		printk(" [%s", isa_dev->prom_node->name);
 }
 
-static struct linux_prom_registers * __init
-isa_dev_get_resource(struct sparc_isa_device *isa_dev)
+static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev)
 {
 	struct linux_prom_registers *pregs;
 	unsigned long base, len;
 	int prop_len;
 
 	pregs = of_get_property(isa_dev->prom_node, "reg", &prop_len);
+	if (!pregs)
+		return;
 
 	/* Only the first one is interesting. */
 	len = pregs[0].reg_size;
@@ -44,12 +45,9 @@ isa_dev_get_resource(struct sparc_isa_device *isa_dev)
 
 	request_resource(&isa_dev->bus->parent->io_space,
 			 &isa_dev->resource);
-
-	return pregs;
 }
 
-static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev,
-				   struct linux_prom_registers *pregs)
+static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev)
 {
 	struct of_device *op = of_find_device_by_node(isa_dev->prom_node);
 
@@ -69,17 +67,14 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
 
 	printk(" ->");
 	while (dp) {
-		struct linux_prom_registers *regs;
 		struct sparc_isa_device *isa_dev;
 
-		isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
+		isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL);
 		if (!isa_dev) {
 			fatal_err("cannot allocate child isa_dev");
 			prom_halt();
 		}
 
-		memset(isa_dev, 0, sizeof(*isa_dev));
-
 		/* Link it in to parent. */
 		isa_dev->next = parent_isa_dev->child;
 		parent_isa_dev->child = isa_dev;
@@ -87,8 +82,8 @@ static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
 		isa_dev->bus = parent_isa_dev->bus;
 		isa_dev->prom_node = dp;
 
-		regs = isa_dev_get_resource(isa_dev);
-		isa_dev_get_irq(isa_dev, regs);
+		isa_dev_get_resource(isa_dev);
+		isa_dev_get_irq(isa_dev);
 
 		report_dev(isa_dev, 1);
 
@@ -101,17 +96,14 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
 	struct device_node *dp = isa_br->prom_node->child;
 
 	while (dp) {
-		struct linux_prom_registers *regs;
 		struct sparc_isa_device *isa_dev;
 
-		isa_dev = kmalloc(sizeof(*isa_dev), GFP_KERNEL);
+		isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL);
 		if (!isa_dev) {
 			printk(KERN_DEBUG "ISA: cannot allocate isa_dev");
 			return;
 		}
 
-		memset(isa_dev, 0, sizeof(*isa_dev));
-
 		isa_dev->ofdev.node = dp;
 		isa_dev->ofdev.dev.parent = &isa_br->ofdev.dev;
 		isa_dev->ofdev.dev.bus = &isa_bus_type;
@@ -141,8 +133,8 @@ static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
 		isa_dev->bus = isa_br;
 		isa_dev->prom_node = dp;
 
-		regs = isa_dev_get_resource(isa_dev);
-		isa_dev_get_irq(isa_dev, regs);
+		isa_dev_get_resource(isa_dev);
+		isa_dev_get_irq(isa_dev);
 
 		report_dev(isa_dev, 0);
 
@@ -180,14 +172,12 @@ void __init isa_init(void)
 		pbm = pdev_cookie->pbm;
 		dp = pdev_cookie->prom_node;
 
-		isa_br = kmalloc(sizeof(*isa_br), GFP_KERNEL);
+		isa_br = kzalloc(sizeof(*isa_br), GFP_KERNEL);
 		if (!isa_br) {
 			printk(KERN_DEBUG "isa: cannot allocate sparc_isa_bridge");
 			return;
 		}
 
-		memset(isa_br, 0, sizeof(*isa_br));
-
 		isa_br->ofdev.node = dp;
 		isa_br->ofdev.dev.parent = &pdev->dev;
 		isa_br->ofdev.dev.bus = &isa_bus_type;
diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c
index 8e75ed762fd..ae221f0d4a6 100644
--- a/arch/sparc64/kernel/kprobes.c
+++ b/arch/sparc64/kernel/kprobes.c
@@ -45,7 +45,11 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 int __kprobes arch_prepare_kprobe(struct kprobe *p)
 {
 	p->ainsn.insn[0] = *p->addr;
+	flushi(&p->ainsn.insn[0]);
+
 	p->ainsn.insn[1] = BREAKPOINT_INSTRUCTION_2;
+	flushi(&p->ainsn.insn[1]);
+
 	p->opcode = *p->addr;
 	return 0;
 }
@@ -185,16 +189,19 @@ no_kprobe:
 /* If INSN is a relative control transfer instruction,
  * return the corrected branch destination value.
  *
- * The original INSN location was REAL_PC, it actually
- * executed at PC and produced destination address NPC.
+ * regs->tpc and regs->tnpc still hold the values of the
+ * program counters at the time of trap due to the execution
+ * of the BREAKPOINT_INSTRUCTION_2 at p->ainsn.insn[1]
+ * 
  */
-static unsigned long __kprobes relbranch_fixup(u32 insn, unsigned long real_pc,
-					       unsigned long pc,
-					       unsigned long npc)
+static unsigned long __kprobes relbranch_fixup(u32 insn, struct kprobe *p,
+					       struct pt_regs *regs)
 {
+	unsigned long real_pc = (unsigned long) p->addr;
+
 	/* Branch not taken, no mods necessary.  */
-	if (npc == pc + 0x4UL)
-		return real_pc + 0x4UL;
+	if (regs->tnpc == regs->tpc + 0x4UL)
+		return real_pc + 0x8UL;
 
 	/* The three cases are call, branch w/prediction,
 	 * and traditional branch.
@@ -202,14 +209,21 @@ static unsigned long __kprobes relbranch_fixup(u32 insn, unsigned long real_pc,
 	if ((insn & 0xc0000000) == 0x40000000 ||
 	    (insn & 0xc1c00000) == 0x00400000 ||
 	    (insn & 0xc1c00000) == 0x00800000) {
+		unsigned long ainsn_addr;
+
+		ainsn_addr = (unsigned long) &p->ainsn.insn[0];
+
 		/* The instruction did all the work for us
 		 * already, just apply the offset to the correct
 		 * instruction location.
 		 */
-		return (real_pc + (npc - pc));
+		return (real_pc + (regs->tnpc - ainsn_addr));
 	}
 
-	return real_pc + 0x4UL;
+	/* It is jmpl or some other absolute PC modification instruction,
+	 * leave NPC as-is.
+	 */
+	return regs->tnpc;
 }
 
 /* If INSN is an instruction which writes it's PC location
@@ -220,12 +234,12 @@ static void __kprobes retpc_fixup(struct pt_regs *regs, u32 insn,
 {
 	unsigned long *slot = NULL;
 
-	/* Simplest cast is call, which always uses %o7 */
+	/* Simplest case is 'call', which always uses %o7 */
 	if ((insn & 0xc0000000) == 0x40000000) {
 		slot = &regs->u_regs[UREG_I7];
 	}
 
-	/* Jmpl encodes the register inside of the opcode */
+	/* 'jmpl' encodes the register inside of the opcode */
 	if ((insn & 0xc1f80000) == 0x81c00000) {
 		unsigned long rd = ((insn >> 25) & 0x1f);
 
@@ -247,11 +261,11 @@ static void __kprobes retpc_fixup(struct pt_regs *regs, u32 insn,
 
 /*
  * Called after single-stepping.  p->addr is the address of the
- * instruction whose first byte has been replaced by the breakpoint
+ * instruction which has been replaced by the breakpoint
  * instruction.  To avoid the SMP problems that can occur when we
  * temporarily put back the original opcode to single-step, we
  * single-stepped a copy of the instruction.  The address of this
- * copy is p->ainsn.insn.
+ * copy is &p->ainsn.insn[0].
  *
  * This function prepares to return from the post-single-step
  * breakpoint trap.
@@ -261,11 +275,11 @@ static void __kprobes resume_execution(struct kprobe *p,
 {
 	u32 insn = p->ainsn.insn[0];
 
+	regs->tnpc = relbranch_fixup(insn, p, regs);
+
+	/* This assignment must occur after relbranch_fixup() */
 	regs->tpc = kcb->kprobe_orig_tnpc;
-	regs->tnpc = relbranch_fixup(insn,
-				     (unsigned long) p->addr,
-				     (unsigned long) &p->ainsn.insn[0],
-				     regs->tnpc);
+
 	retpc_fixup(regs, insn, (unsigned long) p->addr);
 
 	regs->tstate = ((regs->tstate & ~TSTATE_PIL) |
@@ -430,17 +444,8 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	struct jprobe *jp = container_of(p, struct jprobe, kp);
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
-	kcb->jprobe_saved_regs_location = regs;
 	memcpy(&(kcb->jprobe_saved_regs), regs, sizeof(*regs));
 
-	/* Save a whole stack frame, this gets arguments
-	 * pushed onto the stack after using up all the
-	 * arg registers.
-	 */
-	memcpy(&(kcb->jprobe_saved_stack),
-	       (char *) (regs->u_regs[UREG_FP] + STACK_BIAS),
-	       sizeof(kcb->jprobe_saved_stack));
-
 	regs->tpc  = (unsigned long) jp->entry;
 	regs->tnpc = ((unsigned long) jp->entry) + 0x4UL;
 	regs->tstate |= TSTATE_PIL;
@@ -450,10 +455,19 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 
 void __kprobes jprobe_return(void)
 {
-	__asm__ __volatile__(
-		".globl	jprobe_return_trap_instruction\n"
+	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
+	register unsigned long orig_fp asm("g1");
+
+	orig_fp = kcb->jprobe_saved_regs.u_regs[UREG_FP];
+	__asm__ __volatile__("\n"
+"1:	cmp		%%sp, %0\n\t"
+	"blu,a,pt	%%xcc, 1b\n\t"
+	" restore\n\t"
+	".globl		jprobe_return_trap_instruction\n"
 "jprobe_return_trap_instruction:\n\t"
-		"ta 0x70");
+	"ta		0x70"
+	: /* no outputs */
+	: "r" (orig_fp));
 }
 
 extern void jprobe_return_trap_instruction(void);
@@ -466,26 +480,7 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
 	if (addr == (u32 *) jprobe_return_trap_instruction) {
-		if (kcb->jprobe_saved_regs_location != regs) {
-			printk("JPROBE: Current regs (%p) does not match "
-			       "saved regs (%p).\n",
-			       regs, kcb->jprobe_saved_regs_location);
-			printk("JPROBE: Saved registers\n");
-			__show_regs(kcb->jprobe_saved_regs_location);
-			printk("JPROBE: Current registers\n");
-			__show_regs(regs);
-			BUG();
-		}
-		/* Restore old register state.  Do pt_regs
-		 * first so that UREG_FP is the original one for
-		 * the stack frame restore.
-		 */
 		memcpy(regs, &(kcb->jprobe_saved_regs), sizeof(*regs));
-
-		memcpy((char *) (regs->u_regs[UREG_FP] + STACK_BIAS),
-		       &(kcb->jprobe_saved_stack),
-		       sizeof(kcb->jprobe_saved_stack));
-
 		preempt_enable_no_resched();
 		return 1;
 	}
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 8cc14fc6b6f..b0f3e0082a0 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -144,9 +144,12 @@ void __iomem *of_ioremap(struct resource *res, unsigned long offset, unsigned lo
 }
 EXPORT_SYMBOL(of_ioremap);
 
-void of_iounmap(void __iomem *base, unsigned long size)
+void of_iounmap(struct resource *res, void __iomem *base, unsigned long size)
 {
-	release_region((unsigned long) base, size);
+	if (res->flags & IORESOURCE_MEM)
+		release_mem_region((unsigned long) base, size);
+	else
+		release_region((unsigned long) base, size);
 }
 EXPORT_SYMBOL(of_iounmap);
 
@@ -1007,10 +1010,9 @@ struct of_device* of_platform_device_create(struct device_node *np,
 {
 	struct of_device *dev;
 
-	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return NULL;
-	memset(dev, 0, sizeof(*dev));
 
 	dev->dev.parent = parent;
 	dev->dev.bus = bus;
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index e02f01b644a..dfc41cd4bb5 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -646,13 +646,4 @@ int pci_domain_nr(struct pci_bus *pbus)
 }
 EXPORT_SYMBOL(pci_domain_nr);
 
-int pcibios_prep_mwi(struct pci_dev *dev)
-{
-	/* We set correct PCI_CACHE_LINE_SIZE register values for every
-	 * device probed on this platform.  So there is nothing to check
-	 * and this always succeeds.
-	 */
-	return 0;
-}
-
 #endif /* !(CONFIG_PCI) */
diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c
index 03ad4c06758..6b04794b7a9 100644
--- a/arch/sparc64/kernel/pci_sun4v.c
+++ b/arch/sparc64/kernel/pci_sun4v.c
@@ -798,7 +798,7 @@ static struct pci_ops pci_sun4v_ops = {
 static void pbm_scan_bus(struct pci_controller_info *p,
 			 struct pci_pbm_info *pbm)
 {
-	struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL);
+	struct pcidev_cookie *cookie = kzalloc(sizeof(*cookie), GFP_KERNEL);
 
 	if (!cookie) {
 		prom_printf("%s: Critical allocation failure.\n", pbm->name);
@@ -806,7 +806,6 @@ static void pbm_scan_bus(struct pci_controller_info *p,
 	}
 
 	/* All we care about is the PBM. */
-	memset(cookie, 0, sizeof(*cookie));
 	cookie->pbm = pbm;
 
 	pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, p->pci_ops, pbm);
@@ -1048,12 +1047,11 @@ static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
 	/* Allocate and initialize the free area map.  */
 	sz = num_tsb_entries / 8;
 	sz = (sz + 7UL) & ~7UL;
-	iommu->arena.map = kmalloc(sz, GFP_KERNEL);
+	iommu->arena.map = kzalloc(sz, GFP_KERNEL);
 	if (!iommu->arena.map) {
 		prom_printf("PCI_IOMMU: Error, kmalloc(arena.map) failed.\n");
 		prom_halt();
 	}
-	memset(iommu->arena.map, 0, sz);
 	iommu->arena.limit = num_tsb_entries;
 
 	sz = probe_existing_entries(pbm, iommu);
@@ -1164,24 +1162,20 @@ void sun4v_pci_init(struct device_node *dp, char *model_name)
 		per_cpu(pci_iommu_batch, i).pglist = (u64 *) page;
 	}
 
-	p = kmalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
+	p = kzalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
 	if (!p)
 		goto fatal_memory_error;
 
-	memset(p, 0, sizeof(*p));
-
-	iommu = kmalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
+	iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
 	if (!iommu)
 		goto fatal_memory_error;
 
-	memset(iommu, 0, sizeof(*iommu));
 	p->pbm_A.iommu = iommu;
 
-	iommu = kmalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
+	iommu = kzalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
 	if (!iommu)
 		goto fatal_memory_error;
 
-	memset(iommu, 0, sizeof(*iommu));
 	p->pbm_B.iommu = iommu;
 
 	p->next = pci_controller_root;
diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c
index d31975e6d6f..81111a12f0a 100644
--- a/arch/sparc64/kernel/ptrace.c
+++ b/arch/sparc64/kernel/ptrace.c
@@ -202,7 +202,10 @@ asmlinkage void do_ptrace(struct pt_regs *regs)
 #endif
 	if (request == PTRACE_TRACEME) {
 		ret = ptrace_traceme();
-		pt_succ_return(regs, 0);
+		if (ret < 0)
+			pt_error_return(regs, -ret);
+		else
+			pt_succ_return(regs, 0);
 		goto out;
 	}
 
diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S
index 3522cd66f3b..079d18a11d2 100644
--- a/arch/sparc64/kernel/rtrap.S
+++ b/arch/sparc64/kernel/rtrap.S
@@ -165,14 +165,26 @@ rtrap:
 __handle_softirq_continue:
 rtrap_xcall:
 		sethi			%hi(0xf << 20), %l4
-		andcc			%l1, TSTATE_PRIV, %l3
 		and			%l1, %l4, %l4
+		andn			%l1, %l4, %l1
+		srl			%l4, 20, %l4
+#ifdef CONFIG_TRACE_IRQFLAGS
+		brnz,pn			%l4, rtrap_no_irq_enable
+		 nop
+		call			trace_hardirqs_on
+		 nop
+		wrpr			%l4, %pil
+rtrap_no_irq_enable:
+#endif
+		andcc			%l1, TSTATE_PRIV, %l3
 		bne,pn			%icc, to_kernel
-		 andn			%l1, %l4, %l1
+		 nop
 
 		/* We must hold IRQs off and atomically test schedule+signal
 		 * state, then hold them off all the way back to userspace.
-		 * If we are returning to kernel, none of this matters.
+		 * If we are returning to kernel, none of this matters.  Note
+		 * that we are disabling interrupts via PSTATE_IE, not using
+		 * %pil.
 		 *
 		 * If we do not do this, there is a window where we would do
 		 * the tests, later the signal/resched event arrives but we do
@@ -256,7 +268,6 @@ rt_continue:	ldx			[%sp + PTREGS_OFF + PT_V9_G1], %g1
 
 		ld			[%sp + PTREGS_OFF + PT_V9_Y], %o3
 		wr			%o3, %g0, %y
-		srl			%l4, 20, %l4
 		wrpr			%l4, 0x0, %pil
 		wrpr			%g0, 0x1, %tl
 		wrpr			%l1, %g0, %tstate
@@ -374,8 +385,8 @@ to_kernel:
 		 ldx			[%g6 + TI_FLAGS], %l5
 		andcc			%l5, _TIF_NEED_RESCHED, %g0
 		be,pt			%xcc, kern_fpucheck
-		 srl			%l4, 20, %l5
-		cmp			%l5, 0
+		 nop
+		cmp			%l4, 0
 		bne,pn			%xcc, kern_fpucheck
 		 sethi			%hi(PREEMPT_ACTIVE), %l6
 		stw			%l6, [%g6 + TI_PRE_COUNT]
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index cc09d826641..fc99f7b8012 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -1388,7 +1388,7 @@ void __devinit smp_prepare_boot_cpu(void)
 {
 }
 
-int __devinit __cpu_up(unsigned int cpu)
+int __cpuinit __cpu_up(unsigned int cpu)
 {
 	int ret = smp_boot_one_cpu(cpu);
 
@@ -1447,11 +1447,8 @@ void __init setup_per_cpu_areas(void)
 	char *ptr;
 
 	/* Copy section for each CPU (we discard the original) */
-	goal = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
-#ifdef CONFIG_MODULES
-	if (goal < PERCPU_ENOUGH_ROOM)
-		goal = PERCPU_ENOUGH_ROOM;
-#endif
+	goal = PERCPU_ENOUGH_ROOM;
+
 	__per_cpu_shift = 0;
 	for (size = 1UL; size < goal; size <<= 1UL)
 		__per_cpu_shift++;
diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c
new file mode 100644
index 00000000000..c4d15f2762b
--- /dev/null
+++ b/arch/sparc64/kernel/stacktrace.c
@@ -0,0 +1,41 @@
+#include <linux/sched.h>
+#include <linux/stacktrace.h>
+#include <linux/thread_info.h>
+#include <asm/ptrace.h>
+
+void save_stack_trace(struct stack_trace *trace, struct task_struct *task)
+{
+	unsigned long ksp, fp, thread_base;
+	struct thread_info *tp;
+
+	if (!task)
+		task = current;
+	tp = task_thread_info(task);
+	if (task == current) {
+		flushw_all();
+		__asm__ __volatile__(
+			"mov	%%fp, %0"
+			: "=r" (ksp)
+		);
+	} else
+		ksp = tp->ksp;
+
+	fp = ksp + STACK_BIAS;
+	thread_base = (unsigned long) tp;
+	do {
+		struct reg_window *rw;
+
+		/* Bogus frame pointer? */
+		if (fp < (thread_base + sizeof(struct thread_info)) ||
+		    fp >= (thread_base + THREAD_SIZE))
+			break;
+
+		rw = (struct reg_window *) fp;
+		if (trace->skip > 0)
+			trace->skip--;
+		else
+			trace->entries[trace->nr_entries++] = rw->ins[7];
+
+		fp = rw->ins[6] + STACK_BIAS;
+	} while (trace->nr_entries < trace->max_entries);
+}
diff --git a/arch/sparc64/kernel/sun4v_ivec.S b/arch/sparc64/kernel/sun4v_ivec.S
index 49703c3c576..405855dd886 100644
--- a/arch/sparc64/kernel/sun4v_ivec.S
+++ b/arch/sparc64/kernel/sun4v_ivec.S
@@ -190,7 +190,10 @@ sun4v_res_mondo:
 	mov	%g1, %g4
 	ba,pt	%xcc, etrap_irq
 	 rd	%pc, %g7
-
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	/* Log the event.  */
 	add	%sp, PTREGS_OFF, %o0
 	call	sun4v_resum_error
@@ -216,7 +219,10 @@ sun4v_res_mondo_queue_full:
 	wrpr	%g0, 15, %pil
 	ba,pt	%xcc, etrap_irq
 	 rd	%pc, %g7
-
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	call	sun4v_resum_overflow
 	 add	%sp, PTREGS_OFF, %o0
 
@@ -295,7 +301,10 @@ sun4v_nonres_mondo:
 	mov	%g1, %g4
 	ba,pt	%xcc, etrap_irq
 	 rd	%pc, %g7
-
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	/* Log the event.  */
 	add	%sp, PTREGS_OFF, %o0
 	call	sun4v_nonresum_error
@@ -321,7 +330,10 @@ sun4v_nonres_mondo_queue_full:
 	wrpr	%g0, 15, %pil
 	ba,pt	%xcc, etrap_irq
 	 rd	%pc, %g7
-
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	call	sun4v_nonresum_overflow
 	 add	%sp, PTREGS_OFF, %o0
 
diff --git a/arch/sparc64/kernel/sys_sunos32.c b/arch/sparc64/kernel/sys_sunos32.c
index 7da72d3b322..2ebc2c05138 100644
--- a/arch/sparc64/kernel/sys_sunos32.c
+++ b/arch/sparc64/kernel/sys_sunos32.c
@@ -83,7 +83,7 @@ asmlinkage u32 sunos_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u32 of
  		file = fget(fd);
 		if (!file)
 			goto out;
-		inode = file->f_dentry->d_inode;
+		inode = file->f_path.dentry->d_inode;
 		if (imajor(inode) == MEM_MAJOR && iminor(inode) == 5) {
 			flags |= MAP_ANONYMOUS;
 			fput(file);
@@ -615,7 +615,7 @@ sunos_nfs_get_server_fd (int fd, struct sockaddr_in *addr)
 	if (!file)
 		return 0;
 
-	inode = file->f_dentry->d_inode;
+	inode = file->f_path.dentry->d_inode;
 
 	socket = SOCKET_I(inode);
 	local.sin_family = AF_INET;
@@ -1055,7 +1055,7 @@ asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
 		break;
 	case 2:
 		rval = -EFAULT;
-		kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
+		kmbuf = kmalloc(sizeof(struct msgbuf) + arg3,
 						 GFP_KERNEL);
 		if (!kmbuf)
 			break;
@@ -1078,7 +1078,7 @@ asmlinkage int sunos_msgsys(int op, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
 		break;
 	case 3:
 		rval = -EFAULT;
-		kmbuf = (struct msgbuf *)kmalloc(sizeof(struct msgbuf) + arg3,
+		kmbuf = kmalloc(sizeof(struct msgbuf) + arg3,
 						 GFP_KERNEL);
 		if (!kmbuf || sunos_msgbuf_get((struct msgbuf32 __user *)(unsigned long)arg2,
 					       kmbuf, arg3))
diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c
index fe1796c939c..ad67784292d 100644
--- a/arch/sparc64/kernel/traps.c
+++ b/arch/sparc64/kernel/traps.c
@@ -10,7 +10,7 @@
  */
 
 #include <linux/module.h>
-#include <linux/sched.h>  /* for jiffies */
+#include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/kallsyms.h>
 #include <linux/signal.h>
@@ -1873,6 +1873,16 @@ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset)
 
 	put_cpu();
 
+	if (ent->err_type == SUN4V_ERR_TYPE_WARNING_RES) {
+		/* If err_type is 0x4, it's a powerdown request.  Do
+		 * not do the usual resumable error log because that
+		 * makes it look like some abnormal error.
+		 */
+		printk(KERN_INFO "Power down request...\n");
+		kill_cad_pid(SIGINT, 1);
+		return;
+	}
+
 	sun4v_log_error(regs, &local_copy, cpu,
 			KERN_ERR "RESUMABLE ERROR",
 			&sun4v_resum_oflow_cnt);
@@ -2261,8 +2271,12 @@ void die_if_kernel(char *str, struct pt_regs *regs)
 	do_exit(SIGSEGV);
 }
 
+#define VIS_OPCODE_MASK	((0x3 << 30) | (0x3f << 19))
+#define VIS_OPCODE_VAL	((0x2 << 30) | (0x36 << 19))
+
 extern int handle_popc(u32 insn, struct pt_regs *regs);
 extern int handle_ldf_stq(u32 insn, struct pt_regs *regs);
+extern int vis_emul(struct pt_regs *, unsigned int);
 
 void do_illegal_instruction(struct pt_regs *regs)
 {
@@ -2287,10 +2301,18 @@ void do_illegal_instruction(struct pt_regs *regs)
 			if (handle_ldf_stq(insn, regs))
 				return;
 		} else if (tlb_type == hypervisor) {
-			extern int vis_emul(struct pt_regs *, unsigned int);
+			if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) {
+				if (!vis_emul(regs, insn))
+					return;
+			} else {
+				struct fpustate *f = FPUSTATE;
 
-			if (!vis_emul(regs, insn))
-				return;
+				/* XXX maybe verify XFSR bits like
+				 * XXX do_fpother() does?
+				 */
+				if (do_mathemu(regs, f))
+					return;
+			}
 		}
 	}
 	info.si_signo = SIGILL;
diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c
index a9b765271b8..bc18d480dd1 100644
--- a/arch/sparc64/kernel/unaligned.c
+++ b/arch/sparc64/kernel/unaligned.c
@@ -243,7 +243,7 @@ static inline int ok_for_kernel(unsigned int insn)
 	return !floating_point_load_or_store_p(insn);
 }
 
-static void kernel_mna_trap_fault(void)
+static void kernel_mna_trap_fault(int fixup_tstate_asi)
 {
 	struct pt_regs *regs = current_thread_info()->kern_una_regs;
 	unsigned int insn = current_thread_info()->kern_una_insn;
@@ -274,18 +274,15 @@ static void kernel_mna_trap_fault(void)
 	regs->tpc = entry->fixup;
 	regs->tnpc = regs->tpc + 4;
 
-	regs->tstate &= ~TSTATE_ASI;
-	regs->tstate |= (ASI_AIUS << 24UL);
+	if (fixup_tstate_asi) {
+		regs->tstate &= ~TSTATE_ASI;
+		regs->tstate |= (ASI_AIUS << 24UL);
+	}
 }
 
-asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
+static void log_unaligned(struct pt_regs *regs)
 {
 	static unsigned long count, last_time;
-	enum direction dir = decode_direction(insn);
-	int size = decode_access_size(insn);
-
-	current_thread_info()->kern_una_regs = regs;
-	current_thread_info()->kern_una_insn = insn;
 
 	if (jiffies - last_time > 5 * HZ)
 		count = 0;
@@ -295,6 +292,28 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 		printk("Kernel unaligned access at TPC[%lx] ", regs->tpc);
 		print_symbol("%s\n", regs->tpc);
 	}
+}
+
+asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
+{
+	enum direction dir = decode_direction(insn);
+	int size = decode_access_size(insn);
+	int orig_asi, asi;
+
+	current_thread_info()->kern_una_regs = regs;
+	current_thread_info()->kern_una_insn = insn;
+
+	orig_asi = asi = decode_asi(insn, regs);
+
+	/* If this is a {get,put}_user() on an unaligned userspace pointer,
+	 * just signal a fault and do not log the event.
+	 */
+	if (asi == ASI_AIUS) {
+		kernel_mna_trap_fault(0);
+		return;
+	}
+
+	log_unaligned(regs);
 
 	if (!ok_for_kernel(insn) || dir == both) {
 		printk("Unsupported unaligned load/store trap for kernel "
@@ -302,10 +321,10 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 		unaligned_panic("Kernel does fpu/atomic "
 				"unaligned load/store.", regs);
 
-		kernel_mna_trap_fault();
+		kernel_mna_trap_fault(0);
 	} else {
 		unsigned long addr, *reg_addr;
-		int orig_asi, asi, err;
+		int err;
 
 		addr = compute_effective_address(regs, insn,
 						 ((insn >> 25) & 0x1f));
@@ -315,7 +334,6 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 		       regs->tpc, dirstrings[dir], addr, size,
 		       regs->u_regs[UREG_RETPC]);
 #endif
-		orig_asi = asi = decode_asi(insn, regs);
 		switch (asi) {
 		case ASI_NL:
 		case ASI_AIUPL:
@@ -365,7 +383,7 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn)
 			/* Not reached... */
 		}
 		if (unlikely(err))
-			kernel_mna_trap_fault();
+			kernel_mna_trap_fault(1);
 		else
 			advance(regs);
 	}
diff --git a/arch/sparc64/kernel/visemul.c b/arch/sparc64/kernel/visemul.c
index 84fedaa38aa..c3fd64706b5 100644
--- a/arch/sparc64/kernel/visemul.c
+++ b/arch/sparc64/kernel/visemul.c
@@ -128,9 +128,6 @@
 /* 001001100 - Permute bytes as specified by GSR.MASK  */
 #define BSHUFFLE_OPF	0x04c
 
-#define VIS_OPCODE_MASK	((0x3 << 30) | (0x3f << 19))
-#define VIS_OPCODE_VAL	((0x2 << 30) | (0x36 << 19))
-
 #define VIS_OPF_SHIFT	5
 #define VIS_OPF_MASK	(0x1ff << VIS_OPF_SHIFT)
 
@@ -810,9 +807,6 @@ int vis_emul(struct pt_regs *regs, unsigned int insn)
 	if (get_user(insn, (u32 __user *) pc))
 		return -EFAULT;
 
-	if ((insn & VIS_OPCODE_MASK) != VIS_OPCODE_VAL)
-		return -EINVAL;
-
 	opf = (insn & VIS_OPF_MASK) >> VIS_OPF_SHIFT;
 	switch (opf) {
 	default:
diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S
index bd9de8c2a2a..4a6063f33e7 100644
--- a/arch/sparc64/kernel/vmlinux.lds.S
+++ b/arch/sparc64/kernel/vmlinux.lds.S
@@ -13,6 +13,7 @@ SECTIONS
   . = 0x4000;
   .text 0x0000000000404000 :
   {
+    _text = .;
     *(.text)
     SCHED_TEXT
     LOCK_TEXT
diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c
index 53b9b1f528e..33fd0b265e7 100644
--- a/arch/sparc64/mm/hugetlbpage.c
+++ b/arch/sparc64/mm/hugetlbpage.c
@@ -235,6 +235,11 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr)
 	return pte;
 }
 
+int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
+{
+	return 0;
+}
+
 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
 		     pte_t *ptep, pte_t entry)
 {
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 09cb7fccc03..054822a3e05 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -176,9 +176,9 @@ unsigned long sparc64_kern_sec_context __read_mostly;
 
 int bigkernel = 0;
 
-kmem_cache_t *pgtable_cache __read_mostly;
+struct kmem_cache *pgtable_cache __read_mostly;
 
-static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
+static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
 {
 	clear_page(addr);
 }
@@ -872,6 +872,115 @@ static unsigned long __init choose_bootmap_pfn(unsigned long start_pfn,
 	prom_halt();
 }
 
+static void __init trim_pavail(unsigned long *cur_size_p,
+			       unsigned long *end_of_phys_p)
+{
+	unsigned long to_trim = *cur_size_p - cmdline_memory_size;
+	unsigned long avoid_start, avoid_end;
+	int i;
+
+	to_trim = PAGE_ALIGN(to_trim);
+
+	avoid_start = avoid_end = 0;
+#ifdef CONFIG_BLK_DEV_INITRD
+	avoid_start = initrd_start;
+	avoid_end = PAGE_ALIGN(initrd_end);
+#endif
+
+	/* Trim some pavail[] entries in order to satisfy the
+	 * requested "mem=xxx" kernel command line specification.
+	 *
+	 * We must not trim off the kernel image area nor the
+	 * initial ramdisk range (if any).  Also, we must not trim
+	 * any pavail[] entry down to zero in order to preserve
+	 * the invariant that all pavail[] entries have a non-zero
+	 * size which is assumed by all of the code in here.
+	 */
+	for (i = 0; i < pavail_ents; i++) {
+		unsigned long start, end, kern_end;
+		unsigned long trim_low, trim_high, n;
+
+		kern_end = PAGE_ALIGN(kern_base + kern_size);
+
+		trim_low = start = pavail[i].phys_addr;
+		trim_high = end = start + pavail[i].reg_size;
+
+		if (kern_base >= start &&
+		    kern_base < end) {
+			trim_low = kern_base;
+			if (kern_end >= end)
+				continue;
+		}
+		if (kern_end >= start &&
+		    kern_end < end) {
+			trim_high = kern_end;
+		}
+		if (avoid_start &&
+		    avoid_start >= start &&
+		    avoid_start < end) {
+			if (trim_low > avoid_start)
+				trim_low = avoid_start;
+			if (avoid_end >= end)
+				continue;
+		}
+		if (avoid_end &&
+		    avoid_end >= start &&
+		    avoid_end < end) {
+			if (trim_high < avoid_end)
+				trim_high = avoid_end;
+		}
+
+		if (trim_high <= trim_low)
+			continue;
+
+		if (trim_low == start && trim_high == end) {
+			/* Whole chunk is available for trimming.
+			 * Trim all except one page, in order to keep
+			 * entry non-empty.
+			 */
+			n = (end - start) - PAGE_SIZE;
+			if (n > to_trim)
+				n = to_trim;
+
+			if (n) {
+				pavail[i].phys_addr += n;
+				pavail[i].reg_size -= n;
+				to_trim -= n;
+			}
+		} else {
+			n = (trim_low - start);
+			if (n > to_trim)
+				n = to_trim;
+
+			if (n) {
+				pavail[i].phys_addr += n;
+				pavail[i].reg_size -= n;
+				to_trim -= n;
+			}
+			if (to_trim) {
+				n = end - trim_high;
+				if (n > to_trim)
+					n = to_trim;
+				if (n) {
+					pavail[i].reg_size -= n;
+					to_trim -= n;
+				}
+			}
+		}
+
+		if (!to_trim)
+			break;
+	}
+
+	/* Recalculate.  */
+	*cur_size_p = 0UL;
+	for (i = 0; i < pavail_ents; i++) {
+		*end_of_phys_p = pavail[i].phys_addr +
+			pavail[i].reg_size;
+		*cur_size_p += pavail[i].reg_size;
+	}
+}
+
 static unsigned long __init bootmem_init(unsigned long *pages_avail,
 					 unsigned long phys_base)
 {
@@ -889,31 +998,13 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail,
 		end_of_phys_memory = pavail[i].phys_addr +
 			pavail[i].reg_size;
 		bytes_avail += pavail[i].reg_size;
-		if (cmdline_memory_size) {
-			if (bytes_avail > cmdline_memory_size) {
-				unsigned long slack = bytes_avail - cmdline_memory_size;
-
-				bytes_avail -= slack;
-				end_of_phys_memory -= slack;
-
-				pavail[i].reg_size -= slack;
-				if ((long)pavail[i].reg_size <= 0L) {
-					pavail[i].phys_addr = 0xdeadbeefUL;
-					pavail[i].reg_size = 0UL;
-					pavail_ents = i;
-				} else {
-					pavail[i+1].reg_size = 0Ul;
-					pavail[i+1].phys_addr = 0xdeadbeefUL;
-					pavail_ents = i + 1;
-				}
-				break;
-			}
-		}
 	}
 
-	*pages_avail = bytes_avail >> PAGE_SHIFT;
-
-	end_pfn = end_of_phys_memory >> PAGE_SHIFT;
+	/* Determine the location of the initial ramdisk before trying
+	 * to honor the "mem=xxx" command line argument.  We must know
+	 * where the kernel image and the ramdisk image are so that we
+	 * do not trim those two areas from the physical memory map.
+	 */
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	/* Now have to check initial ramdisk, so that bootmap does not overwrite it */
@@ -932,6 +1023,16 @@ static unsigned long __init bootmem_init(unsigned long *pages_avail,
 		}
 	}
 #endif	
+
+	if (cmdline_memory_size &&
+	    bytes_avail > cmdline_memory_size)
+		trim_pavail(&bytes_avail,
+			    &end_of_phys_memory);
+
+	*pages_avail = bytes_avail >> PAGE_SHIFT;
+
+	end_pfn = end_of_phys_memory >> PAGE_SHIFT;
+
 	/* Initialize the boot-time allocator. */
 	max_pfn = max_low_pfn = end_pfn;
 	min_low_pfn = (phys_base >> PAGE_SHIFT);
diff --git a/arch/sparc64/mm/tsb.c b/arch/sparc64/mm/tsb.c
index beaa02810f0..236d02f41a0 100644
--- a/arch/sparc64/mm/tsb.c
+++ b/arch/sparc64/mm/tsb.c
@@ -239,7 +239,7 @@ static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsign
 	}
 }
 
-static kmem_cache_t *tsb_caches[8] __read_mostly;
+static struct kmem_cache *tsb_caches[8] __read_mostly;
 
 static const char *tsb_cache_names[8] = {
 	"tsb_8KB",
diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S
index d70b60a3bbc..737c26923c0 100644
--- a/arch/sparc64/mm/ultra.S
+++ b/arch/sparc64/mm/ultra.S
@@ -477,6 +477,10 @@ xcall_sync_tick:
 	sethi		%hi(109f), %g7
 	b,pt		%xcc, etrap_irq
 109:	 or		%g7, %lo(109b), %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	call		smp_synchronize_tick_client
 	 nop
 	clr		%l6
@@ -508,6 +512,10 @@ xcall_report_regs:
 	sethi		%hi(109f), %g7
 	b,pt		%xcc, etrap_irq
 109:	 or		%g7, %lo(109b), %g7
+#ifdef CONFIG_TRACE_IRQFLAGS
+	call		trace_hardirqs_off
+	 nop
+#endif
 	call		__show_regs
 	 add		%sp, PTREGS_OFF, %o0
 	clr		%l6
diff --git a/arch/sparc64/solaris/fs.c b/arch/sparc64/solaris/fs.c
index 12a940cc791..61be597bf43 100644
--- a/arch/sparc64/solaris/fs.c
+++ b/arch/sparc64/solaris/fs.c
@@ -449,7 +449,7 @@ asmlinkage int solaris_fstatvfs(unsigned int fd, u32 buf)
 	error = -EBADF;
 	file = fget(fd);
 	if (file) {
-		error = report_statvfs(file->f_vfsmnt, file->f_dentry->d_inode, buf);
+		error = report_statvfs(file->f_path.mnt, file->f_path.dentry->d_inode, buf);
 		fput(file);
 	}
 
@@ -481,7 +481,7 @@ asmlinkage int solaris_fstatvfs64(unsigned int fd, u32 buf)
 	file = fget(fd);
 	if (file) {
 		lock_kernel();
-		error = report_statvfs64(file->f_vfsmnt, file->f_dentry->d_inode, buf);
+		error = report_statvfs64(file->f_path.mnt, file->f_path.dentry->d_inode, buf);
 		unlock_kernel();
 		fput(file);
 	}
diff --git a/arch/sparc64/solaris/ioctl.c b/arch/sparc64/solaris/ioctl.c
index be0a054e3ed..330743c5b3d 100644
--- a/arch/sparc64/solaris/ioctl.c
+++ b/arch/sparc64/solaris/ioctl.c
@@ -299,8 +299,8 @@ static inline int solaris_sockmod(unsigned int fd, unsigned int cmd, u32 arg)
 	rcu_read_lock();
 	fdt = files_fdtable(current->files);
 	if (! fdt->fd[fd] ||
-	    ! fdt->fd[fd]->f_dentry ||
-	    ! (ino = fdt->fd[fd]->f_dentry->d_inode) ||
+	    ! fdt->fd[fd]->f_path.dentry ||
+	    ! (ino = fdt->fd[fd]->f_path.dentry->d_inode) ||
 	    ! S_ISSOCK(ino->i_mode)) {
 		rcu_read_unlock();
 		return TBADF;
@@ -480,7 +480,7 @@ static inline int solaris_S(struct file *filp, unsigned int fd, unsigned int cmd
         struct sol_socket_struct *sock;
         struct module_info *mi;
 
-        ino = filp->f_dentry->d_inode;
+        ino = filp->f_path.dentry->d_inode;
         if (!S_ISSOCK(ino->i_mode))
 		return -EBADF;
         sock = filp->private_data;
diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c
index 9ed997982f8..bca16e8c95c 100644
--- a/arch/sparc64/solaris/misc.c
+++ b/arch/sparc64/solaris/misc.c
@@ -77,7 +77,7 @@ static u32 do_solaris_mmap(u32 addr, u32 len, u32 prot, u32 flags, u32 fd, u64 o
 		if (!file)
 			goto out;
 		else {
-			struct inode * inode = file->f_dentry->d_inode;
+			struct inode * inode = file->f_path.dentry->d_inode;
 			if(imajor(inode) == MEM_MAJOR &&
 			   iminor(inode) == 5) {
 				flags |= MAP_ANONYMOUS;
@@ -423,9 +423,7 @@ asmlinkage int solaris_procids(int cmd, s32 pid, s32 pgid)
 			   Solaris setpgrp and setsid? */
 			ret = sys_setpgid(0, 0);
 			if (ret) return ret;
-			mutex_lock(&tty_mutex);
-			current->signal->tty = NULL;
-			mutex_unlock(&tty_mutex);
+			proc_clear_tty(current);
 			return process_group(current);
 		}
 	case 2: /* getsid */
diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c
index 7c90e41fd3b..89a4757f192 100644
--- a/arch/sparc64/solaris/socksys.c
+++ b/arch/sparc64/solaris/socksys.c
@@ -96,13 +96,13 @@ static int socksys_open(struct inode * inode, struct file * filp)
 	 * No shit.  WTF is it supposed to do, anyway?
 	 *
 	 * Try instead:
-	 * d_delete(filp->f_dentry), then d_instantiate with sock inode
+	 * d_delete(filp->f_path.dentry), then d_instantiate with sock inode
 	 */
-	dentry = filp->f_dentry;
-	filp->f_dentry = dget(fcheck(fd)->f_dentry);
-	filp->f_dentry->d_inode->i_rdev = inode->i_rdev;
-	filp->f_dentry->d_inode->i_flock = inode->i_flock;
-	SOCKET_I(filp->f_dentry->d_inode)->file = filp;
+	dentry = filp->f_path.dentry;
+	filp->f_path.dentry = dget(fcheck(fd)->f_path.dentry);
+	filp->f_path.dentry->d_inode->i_rdev = inode->i_rdev;
+	filp->f_path.dentry->d_inode->i_flock = inode->i_flock;
+	SOCKET_I(filp->f_path.dentry->d_inode)->file = filp;
 	filp->f_op = &socksys_file_ops;
         sock = (struct sol_socket_struct*) 
         	mykmalloc(sizeof(struct sol_socket_struct), GFP_KERNEL);
@@ -148,7 +148,7 @@ static unsigned int socksys_poll(struct file * filp, poll_table * wait)
 	struct inode *ino;
 	unsigned int mask = 0;
 
-	ino=filp->f_dentry->d_inode;
+	ino=filp->f_path.dentry->d_inode;
 	if (ino && S_ISSOCK(ino->i_mode)) {
 		struct sol_socket_struct *sock;
 		sock = (struct sol_socket_struct*)filp->private_data;
diff --git a/arch/sparc64/solaris/timod.c b/arch/sparc64/solaris/timod.c
index b84e5456b02..a9d32ceabf2 100644
--- a/arch/sparc64/solaris/timod.c
+++ b/arch/sparc64/solaris/timod.c
@@ -147,7 +147,7 @@ static void timod_wake_socket(unsigned int fd)
 
 	SOLD("wakeing socket");
 	fdt = files_fdtable(current->files);
-	sock = SOCKET_I(fdt->fd[fd]->f_dentry->d_inode);
+	sock = SOCKET_I(fdt->fd[fd]->f_path.dentry->d_inode);
 	wake_up_interruptible(&sock->wait);
 	read_lock(&sock->sk->sk_callback_lock);
 	if (sock->fasync_list && !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
@@ -361,7 +361,7 @@ int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len,
 
 	fdt = files_fdtable(current->files);
 	filp = fdt->fd[fd];
-	ino = filp->f_dentry->d_inode;
+	ino = filp->f_path.dentry->d_inode;
 	sock = (struct sol_socket_struct *)filp->private_data;
 	SOLD("entry");
 	if (get_user(ret, (int __user *)A(ctl_buf)))
@@ -644,7 +644,7 @@ int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, s32 __us
 	SOLDD(("%u %p %d %p %p %d %p %d\n", fd, ctl_buf, ctl_maxlen, ctl_len, data_buf, data_maxlen, data_len, *flags_p));
 	fdt = files_fdtable(current->files);
 	filp = fdt->fd[fd];
-	ino = filp->f_dentry->d_inode;
+	ino = filp->f_path.dentry->d_inode;
 	sock = (struct sol_socket_struct *)filp->private_data;
 	SOLDD(("%p %p\n", sock->pfirst, sock->pfirst ? sock->pfirst->next : NULL));
 	if ( ctl_maxlen > 0 && !sock->pfirst && SOCKET_I(ino)->type == SOCK_STREAM
@@ -865,7 +865,7 @@ asmlinkage int solaris_getmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3)
 	filp = fdt->fd[fd];
 	if(!filp) goto out;
 
-	ino = filp->f_dentry->d_inode;
+	ino = filp->f_path.dentry->d_inode;
 	if (!ino || !S_ISSOCK(ino->i_mode))
 		goto out;
 
@@ -933,7 +933,7 @@ asmlinkage int solaris_putmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3)
 	filp = fdt->fd[fd];
 	if(!filp) goto out;
 
-	ino = filp->f_dentry->d_inode;
+	ino = filp->f_path.dentry->d_inode;
 	if (!ino) goto out;
 
 	if (!S_ISSOCK(ino->i_mode) &&